Skip Navigation

The U.S. Department of Energy and the North Carolina Clean Energy Technology Center are excited to announce that a new, modernized DSIRE is under construction. The new version of DSIRE will offer significant improvements over the current version, including expanded data accessibility and an array of new tools for site users. The new DSIRE site will be available in December 2014. Staff are currently working hard on the new version of DSIRE but are also maintaining the content of the current version of DSIRE. Thank you for your continued support and patience during this transition. We hope you are as excited for December as we are!

US Department Energy Efficiency and Renewable Energy
IREC North Carolina Solar Center
Home Glossary Links FAQs Contact About Twitter    Facebook


Incentives/Policies for Renewables & Efficiency

Printable Version
Solar Water Heating Incentive Program   

Last DSIRE Review: 10/14/2014
Program Overview:
State: Oregon
Incentive Type: State Rebate Program
Eligible Renewable/Other Technologies: Solar Water Heat, Solar Pool Heating
Applicable Sectors: Commercial, Industrial, Residential, Nonprofit, Schools, Local Government, State Government, Multi-Family Residential, Agricultural, Institutional, Wineries, Greenhouses, Manufacturing
Amount:Varies by sector, water heating fuel, and electric or gas provider; see below for details
Maximum Incentive:Varies by sector, location, technology, and electric or gas provider; see below for details
Equipment Requirements:Systems must be new. Expansions to existing solar systems are not eligible. System must be listed as eligible by Energy Trust and must be SRCC-certified.
Installation Requirements:Systems must be installed by a qualified Energy Trust solar contractor. Self-installed systems do not qualify. All commercial systems must be pre-approved prior to installation.
Funding Source:Public Benefits Fund
Start Date:October 2003
Web Site:

Note: After reviewing data provided by the Energy Trust and conducting a public comments process during summer and fall of 2014, the Oregon Public Utilities Commission concluded that Energy Trust incentives must be discontinued for residential and commercial solar water heating and solar pool heating measures because they are no longer passing the cost-effectiveness tests. As a result, incentives will be discontinued November 7, 2014. Read the full announcement here.  

The Energy Trust of Oregon's Solar Water Heating (SWH) Incentive Program offers incentives to customers of Pacific Power, PGE, NW Natural Gas and Cascade Natural Gas who install solar water or pool heating systems on their homes, office buildings, community buildings, agricultural, and municipal facilities. Energy Trust is a nonprofit organization created to invest public purpose funding in energy efficiency and renewable energy development in Oregon.

Commercial incentives are calculated by multiplying the incentive rate by the estimated annual energy savings and residential incentives are a flat rate per system based on the location of the system. Zone 1 is Northwest Oregon, and Zones 2 and 3 are Southwest Oregon and East of the Cascades. The incentive is paid to the solar contractor and deducted from the customer's final cost as follows:

Electric water heating:

  • Residential solar water heating: $1,000 for customers in Zone 1 and $1,200 for customers located in Zones 2 and 3
  • Commercial and multifamily solar water heating: $0.40 per first-year kilowatt-hour (kWh) savings

Gas water heating:

  • Residential solar water heating: $550 for customers in Zone 1 and $700 for customers in Zones 2 and 3
  • Commercial and multifamily solar water heating: $6.00 per first-year therm savings

Solar pool heating:

  • Solar pool heating using unglazed collectors (outdoor pools): $3.00 per square foot of collector area, up to 50% of project cost
  • Solar pool heating using unglazed collectors (indoor pools): $4.50 per square foot of collector area up to 50% of project cost
  • Solar pool heating using glazed collectors (indoor and outdoor pools): $0.40 per kWh or $6.00 per therm up to 35% of project cost for commercial or multifamily; based upon estimated annual energy savings for residential

The Energy Trust SWH Program has installation standards and maintains a list of eligible residential systems. To be eligible, residential systems must be Solar Rating and Certification Corporation (SRCC) OG-300 rated and must also meet additional Energy Trust requirements.

Energy Trust maintains a list of contractors and will provide referrals to contractors from their trade ally network. The contractor will help select a solar water heating system and provide a system quote estimating annual performance, installation date, and the cost after incentive deductions. The contractor will explain maintenance and warranty details and how to apply for tax credits available from the state and federal governments.

Oregon also offers renewable energy personal tax credits.

  David McClelland
Energy Trust of Oregon
421 SW Oak Street, Suite 300
Portland, OR 97204
Phone: (503) 459-4073 Ext.223
Fax: (503) 546-6862
Web Site:
NCSU - home
Disclaimer: The information presented on the DSIRE web site provides an unofficial overview of financial incentives and other policies. It does not constitute professional tax advice or other professional financial guidance, and it should not be used as the only source of information when making purchasing decisions, investment decisions or tax decisions, or when executing other binding agreements. Please refer to the individual contact provided below each summary to verify that a specific financial incentive or other policy applies to your project.

While the DSIRE staff strives to provide the best information possible, the DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. make no representations or warranties, either express or implied, concerning the accuracy, completeness, reliability or suitability of the information. The DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. disclaim all liability of any kind arising out of your use or misuse of the information contained or referenced on DSIRE Web pages.

Copyright 2013 - 2014 North Carolina State University, under NREL Subcontract No. XEU-0-99515-01. Permission granted only for personal or educational use, or for use by or on behalf of the U.S. government. North Carolina State University prohibits the unauthorized display, reproduction, sale, and/or distribution of all or portions of the content of the Database of State Incentives for Renewables and Efficiency (DSIRE) without prior, written consent.